Condenser for refrigerating systems



CONDENSER FOR REFRIGERATING SYSTEMS Filed Aug. 25, 1929 L/HMEE .5. HEFLUELE.

gguz M Patented at as, we.

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adding objectionable size. v r y RA'IORIES, Inc, or ,izos'ron;ranssnonusnr'rsgntoonronnrron: org nassecnusnrrs ooivnsusnnron'nnrnie'nnerrnesirsirms f1 a Ap ucauoa :filed'Augus'tj 2a, 1929. I i'SCeriaI No;387,965.

This invention relates to condensers, and

more particularly to condensers forming-a v formed with a filler neck 18adapted to be closed 'by'the cap 19 which screws thereon.)

.Theirefrigerant vessel iscontained wholly 0 .withinthe container andpart of mechanical refrigerating systems.

; Mechanical"refrigerating systems of the domesticltype must beconstructedto occupy .a limitedspace and at the sametime transfer heatquickly: during intermittent operation. .As a result it is substantiallyuniversal prac ti'se to employ copper as material; because ofits,pliability andfast heat dissipating qualities, and also toassociateeither running water or forced air inthermalcontact with thecopper refrigerant container inforder to produ'cethe required heatabsorbing efficiency. Copper is expensive, installation and operatingcosts of running water are high, while air forcing mechanism 1s an addedexpense, and therefore in order to meet requirements of space and eficiency a material expense results.- An object of the invention is tomaterially lessen the cost of'condensers withoutsacrificing heattra'nsfer efiiciency or Another object of-my'invention ing systems withwhich neither running Water nor forced draft is required in order toeifi ciently absorb heat from therefrigerant ing intermittentlytherethirough. i 30 A further object of the invention is toprovideacondenser for refrigerating systems of the compression type which willfunction eificiently and 'With a low head pressure.

These and other objects of the invention 15 the invention progresses.

will appear as the fol owing descriptionoi,

In the accompanyingdrawings, I haveillustratedin vertical section a.condenser incorporating my invention.

The condenser comprlsesa container 10, a

refrigerant receiving vessel 11 arranged with-- (not shown). Atube 1eextends from the upper end of the vessel to the exteriorof thecontainer, and a purgingvalve 15 isassociat ed with the protruding endof such tube. The inlet conduit terminates in an enlarged flared v I isto m vide a condenser for mechanical; refrigeratpass I with the liquid,condensed refrigeranhtoa portion 16 acrossthe open'end ofwhichis secureda1fine screen 17. The'containeris,

is closed with respect rectangular envelope adapted to be" securedalongthe, rear Wall of the cabinet' to be refrlgerated sotha't'itsposition does notmaterially' increasefthe overall dimensionsof thecabinet. The refrigerant containing vessel is formed ofcopper, and is ofa size such thatit'will' occupy only a minor portion of I thespace"Within the. container. The 'conthe'conduit 12 from the compressor intothe? v .70 tamer-11s filled 'Wlth Water through the neck.-

vessel throughvthescreen 17, and condensed 1 refrigerant leaves thevessel through the'conduit 13min.acondition'for:admissionto the Ievaporator 'Theivesseli is partial-1y filled degree such that thescreenis'well submerged: I

Gas entering the vesselwill bubble throughf the condensed'refrigerantand'will be broken f upinto smaller-'bubblesby the screen and'as" I suchgas bubbles have a super heat, that is-a heat-greater than the surfaceliquid refrigerant in the vessehfthe bubbles will yield heat to theliquidland thereby. gasifying someof the liquid while loweringthe-incoming "gas temperature; Thus the total volume of gas to becondensed in the-vessel is greater than 1 that issuing from thecompressor. It

is well. known-that heat flow from acondensinggas withoutsuperheatthrough metal walls to an absorbing fliquidbccurs about five hundredtimes ;-as readily as heatlflow. from anon condensing or super heatedgasthrough metal walls to alr, and therefore a very. small, amount 0fimetal area or wall'surface w th 2 high gas pressure is required in thevessel con- Obtain heat transfer required. 2Further, the condensercanbezformedsozthat the spaceoc- .cupied zthereby will add very littletothe-overall dimensions of .the cabinetwithwhich it i-SrlQO: be; associated.

struction. Because of this I am able to utilize a large amount ofinexpensive low pressure surface for transferring heat from the water tothe surrounding air and will obtain the required condensing withoutwater or forced draft-,as the heatcapacity of the water in the containerwill take care ofthe excess heat flow from the vessel While theapparatus 0 rates intermittently. The surface area of t e containerneed'be' only sufiicient'to'provide for transferring the average'heatto'be dissipated during hot .weather, astheheat capacity of the Waterwill take care of the excess rate of heat transfer required during theintermittent compressor'operating periods.

:It will be seen-that the. materialofrthe condenser is inexpensive,thatrno'rrunning water and installations thereof are requiredand thatrforced draft is not necessaryin order to Various. changes :can be:madezin the details Of'CODSUfHCtIOD herein described Without de fthescope of :the claims.

What lclaimris: 1. ,In a .mechariical :nefrigeratingsystem, 11 cQndenSercomprising a "closed container adapted to be filledwith'water, .a vesselin thecontaineradapted to be partially filled with condensedrefrigerant, a conduit for admitting compressed refrigerant gas intothevesselibeneath the :liquid refrigerant level, and an outlet conduitthrough which condensed' refrigerant passes from the vessel. ,2. In amechanical refrigerating system, the method of condens'ingthecompressedregas comprising moving the compressed gas through and indirect contact with :a of condensed refrigerant and thereby abstractingEheat therefrom, collectiingthe 'gas adjacent the liquid body afterpassing .thenethrough, abstracting heat from he "body of condensedrefrigerant and the collected gas Witha body of still water.,.anddissipating heat absorbed by the water with natural draft atmosphere.

3. In a mechanical refrigerating system, the method of condensingcompressed refrigerant gas comprising moving the compre ed gas throughand in direct contact with a body of condensed refrigerant and therebyabstracting heat therefrom, breaking up the gasbubbles Whilemovingthrough the condensed refrigerant body, collecting the gasadjacent the body after passing therethrough, abstracting heat from thebody and the collected gas with still Water, and abstracting the heatabsorbed by the Water with natural draft atmosphere.

. 4. In a mechanical refrigerating condenser, a container adapted tohold Water, a

the open end of the inlet conduit.

5. In a mechanical refrigerating system, a condenser comprising a closedcontainer adapted to hold still Water, a vessel submerged in'the'waterin'the container, re-

"fri'gerant inlet'an d outlet conduits connected with ..the..bottom ofsaid vessel, the outlet end of said inlet conduit terminating in aplurality of apertures, and means for purg- "condenser comprising aclosed container adapted to befilled'with-still water, a vesselsubmerged in the water in-said container, an .inlet conduit extendinginteriorly of the yessel :for conducting compressed refrigerant into thevessel,"an outletconduit for conducting liquid refrigerant froni'thevessel, said vesselbeing partially filled with condensed refrigerant,and means associated witlrinltconduit below the refrigerant'level:partingfrom the spirit ofthefinvention 'and 7 1 for king p g b b lespassing through the liquid refrigerant.

In testimony whereof, I hereunto afli'x my JA 'ES B. REPLO GLE.

